1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2015 Mellanox Technologies, Ltd
9 #include <rte_ethdev_driver.h>
10 #include <rte_interrupts.h>
11 #include <rte_alarm.h>
14 #include "mlx5_rxtx.h"
15 #include "mlx5_utils.h"
18 * Stop traffic on Tx queues.
21 * Pointer to Ethernet device structure.
24 mlx5_txq_stop(struct rte_eth_dev *dev)
26 struct mlx5_priv *priv = dev->data->dev_private;
29 for (i = 0; i != priv->txqs_n; ++i)
30 mlx5_txq_release(dev, i);
34 * Start traffic on Tx queues.
37 * Pointer to Ethernet device structure.
40 * 0 on success, a negative errno value otherwise and rte_errno is set.
43 mlx5_txq_start(struct rte_eth_dev *dev)
45 struct mlx5_priv *priv = dev->data->dev_private;
49 for (i = 0; i != priv->txqs_n; ++i) {
50 struct mlx5_txq_ctrl *txq_ctrl = mlx5_txq_get(dev, i);
54 if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) {
55 txq_ctrl->obj = mlx5_txq_obj_new
56 (dev, i, MLX5_TXQ_OBJ_TYPE_DEVX_HAIRPIN);
58 txq_alloc_elts(txq_ctrl);
59 txq_ctrl->obj = mlx5_txq_obj_new
60 (dev, i, MLX5_TXQ_OBJ_TYPE_IBV);
69 ret = rte_errno; /* Save rte_errno before cleanup. */
71 mlx5_txq_release(dev, i);
73 rte_errno = ret; /* Restore rte_errno. */
78 * Stop traffic on Rx queues.
81 * Pointer to Ethernet device structure.
84 mlx5_rxq_stop(struct rte_eth_dev *dev)
86 struct mlx5_priv *priv = dev->data->dev_private;
89 for (i = 0; i != priv->rxqs_n; ++i)
90 mlx5_rxq_release(dev, i);
94 * Start traffic on Rx queues.
97 * Pointer to Ethernet device structure.
100 * 0 on success, a negative errno value otherwise and rte_errno is set.
103 mlx5_rxq_start(struct rte_eth_dev *dev)
105 struct mlx5_priv *priv = dev->data->dev_private;
108 enum mlx5_rxq_obj_type obj_type = MLX5_RXQ_OBJ_TYPE_IBV;
110 for (i = 0; i < priv->rxqs_n; ++i) {
111 if ((*priv->rxqs)[i]->lro) {
112 obj_type = MLX5_RXQ_OBJ_TYPE_DEVX_RQ;
116 /* Allocate/reuse/resize mempool for Multi-Packet RQ. */
117 if (mlx5_mprq_alloc_mp(dev)) {
118 /* Should not release Rx queues but return immediately. */
121 for (i = 0; i != priv->rxqs_n; ++i) {
122 struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
123 struct rte_mempool *mp;
127 if (rxq_ctrl->type == MLX5_RXQ_TYPE_HAIRPIN) {
128 rxq_ctrl->obj = mlx5_rxq_obj_new
129 (dev, i, MLX5_RXQ_OBJ_TYPE_DEVX_HAIRPIN);
134 /* Pre-register Rx mempool. */
135 mp = mlx5_rxq_mprq_enabled(&rxq_ctrl->rxq) ?
136 rxq_ctrl->rxq.mprq_mp : rxq_ctrl->rxq.mp;
138 "port %u Rx queue %u registering"
139 " mp %s having %u chunks",
140 dev->data->port_id, rxq_ctrl->rxq.idx,
141 mp->name, mp->nb_mem_chunks);
142 mlx5_mr_update_mp(dev, &rxq_ctrl->rxq.mr_ctrl, mp);
143 ret = rxq_alloc_elts(rxq_ctrl);
146 rxq_ctrl->obj = mlx5_rxq_obj_new(dev, i, obj_type);
149 if (obj_type == MLX5_RXQ_OBJ_TYPE_IBV)
150 rxq_ctrl->wqn = rxq_ctrl->obj->wq->wq_num;
151 else if (obj_type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ)
152 rxq_ctrl->wqn = rxq_ctrl->obj->rq->id;
156 ret = rte_errno; /* Save rte_errno before cleanup. */
158 mlx5_rxq_release(dev, i);
160 rte_errno = ret; /* Restore rte_errno. */
165 * DPDK callback to start the device.
167 * Simulate device start by attaching all configured flows.
170 * Pointer to Ethernet device structure.
173 * 0 on success, a negative errno value otherwise and rte_errno is set.
176 mlx5_dev_start(struct rte_eth_dev *dev)
178 struct mlx5_priv *priv = dev->data->dev_private;
181 DRV_LOG(DEBUG, "port %u starting device", dev->data->port_id);
182 ret = mlx5_txq_start(dev);
184 DRV_LOG(ERR, "port %u Tx queue allocation failed: %s",
185 dev->data->port_id, strerror(rte_errno));
188 ret = mlx5_rxq_start(dev);
190 DRV_LOG(ERR, "port %u Rx queue allocation failed: %s",
191 dev->data->port_id, strerror(rte_errno));
195 dev->data->dev_started = 1;
196 ret = mlx5_rx_intr_vec_enable(dev);
198 DRV_LOG(ERR, "port %u Rx interrupt vector creation failed",
202 mlx5_stats_init(dev);
203 ret = mlx5_traffic_enable(dev);
205 DRV_LOG(DEBUG, "port %u failed to set defaults flows",
209 ret = mlx5_flow_start(dev, &priv->flows);
211 DRV_LOG(DEBUG, "port %u failed to set flows",
216 dev->tx_pkt_burst = mlx5_select_tx_function(dev);
217 dev->rx_pkt_burst = mlx5_select_rx_function(dev);
218 /* Enable datapath on secondary process. */
219 mlx5_mp_req_start_rxtx(dev);
220 mlx5_dev_interrupt_handler_install(dev);
223 ret = rte_errno; /* Save rte_errno before cleanup. */
225 dev->data->dev_started = 0;
226 mlx5_flow_stop(dev, &priv->flows);
227 mlx5_traffic_disable(dev);
230 rte_errno = ret; /* Restore rte_errno. */
235 * DPDK callback to stop the device.
237 * Simulate device stop by detaching all configured flows.
240 * Pointer to Ethernet device structure.
243 mlx5_dev_stop(struct rte_eth_dev *dev)
245 struct mlx5_priv *priv = dev->data->dev_private;
247 dev->data->dev_started = 0;
248 /* Prevent crashes when queues are still in use. */
249 dev->rx_pkt_burst = removed_rx_burst;
250 dev->tx_pkt_burst = removed_tx_burst;
252 /* Disable datapath on secondary process. */
253 mlx5_mp_req_stop_rxtx(dev);
254 usleep(1000 * priv->rxqs_n);
255 DRV_LOG(DEBUG, "port %u stopping device", dev->data->port_id);
256 mlx5_flow_stop(dev, &priv->flows);
257 mlx5_traffic_disable(dev);
258 mlx5_rx_intr_vec_disable(dev);
259 mlx5_dev_interrupt_handler_uninstall(dev);
265 * Enable traffic flows configured by control plane
268 * Pointer to Ethernet device private data.
270 * Pointer to Ethernet device structure.
273 * 0 on success, a negative errno value otherwise and rte_errno is set.
276 mlx5_traffic_enable(struct rte_eth_dev *dev)
278 struct mlx5_priv *priv = dev->data->dev_private;
279 struct rte_flow_item_eth bcast = {
280 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
282 struct rte_flow_item_eth ipv6_multi_spec = {
283 .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
285 struct rte_flow_item_eth ipv6_multi_mask = {
286 .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
288 struct rte_flow_item_eth unicast = {
289 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
291 struct rte_flow_item_eth unicast_mask = {
292 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
294 const unsigned int vlan_filter_n = priv->vlan_filter_n;
295 const struct rte_ether_addr cmp = {
296 .addr_bytes = "\x00\x00\x00\x00\x00\x00",
302 if (priv->config.dv_esw_en && !priv->config.vf)
303 if (!mlx5_flow_create_esw_table_zero_flow(dev))
307 if (dev->data->promiscuous) {
308 struct rte_flow_item_eth promisc = {
309 .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
310 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
314 ret = mlx5_ctrl_flow(dev, &promisc, &promisc);
318 if (dev->data->all_multicast) {
319 struct rte_flow_item_eth multicast = {
320 .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
321 .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
325 ret = mlx5_ctrl_flow(dev, &multicast, &multicast);
329 /* Add broadcast/multicast flows. */
330 for (i = 0; i != vlan_filter_n; ++i) {
331 uint16_t vlan = priv->vlan_filter[i];
333 struct rte_flow_item_vlan vlan_spec = {
334 .tci = rte_cpu_to_be_16(vlan),
336 struct rte_flow_item_vlan vlan_mask =
337 rte_flow_item_vlan_mask;
339 ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
340 &vlan_spec, &vlan_mask);
343 ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
345 &vlan_spec, &vlan_mask);
349 if (!vlan_filter_n) {
350 ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
353 ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
359 /* Add MAC address flows. */
360 for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
361 struct rte_ether_addr *mac = &dev->data->mac_addrs[i];
363 if (!memcmp(mac, &cmp, sizeof(*mac)))
365 memcpy(&unicast.dst.addr_bytes,
368 for (j = 0; j != vlan_filter_n; ++j) {
369 uint16_t vlan = priv->vlan_filter[j];
371 struct rte_flow_item_vlan vlan_spec = {
372 .tci = rte_cpu_to_be_16(vlan),
374 struct rte_flow_item_vlan vlan_mask =
375 rte_flow_item_vlan_mask;
377 ret = mlx5_ctrl_flow_vlan(dev, &unicast,
384 if (!vlan_filter_n) {
385 ret = mlx5_ctrl_flow(dev, &unicast, &unicast_mask);
392 ret = rte_errno; /* Save rte_errno before cleanup. */
393 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
394 rte_errno = ret; /* Restore rte_errno. */
400 * Disable traffic flows configured by control plane
403 * Pointer to Ethernet device private data.
406 mlx5_traffic_disable(struct rte_eth_dev *dev)
408 struct mlx5_priv *priv = dev->data->dev_private;
410 mlx5_flow_list_flush(dev, &priv->ctrl_flows);
414 * Restart traffic flows configured by control plane
417 * Pointer to Ethernet device private data.
420 * 0 on success, a negative errno value otherwise and rte_errno is set.
423 mlx5_traffic_restart(struct rte_eth_dev *dev)
425 if (dev->data->dev_started) {
426 mlx5_traffic_disable(dev);
427 return mlx5_traffic_enable(dev);